Home / 117,478.05-162,080.39-66,485.41

Finding the Fourth Proportional to 117,478.05, 162,080.39 and 66,485.41

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Solution

The fourth proportional to 117,478.05, 162,080.39 and 66,485.41 is: 91,727.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,478.05 : 162,080.39 = 66,485.41 : x
  2. Step 2: Convert to fraction form
    117,478.05/162,080.39 = 66,485.41/x
  3. Step 3: Cross multiply
    117,478.05x = 162,080.39 × 66,485.41
  4. Step 4: Simplify right side
    117,478.05x = 10,775,980,943.12
  5. Step 5: Solve for x
    x = 10,775,980,943.12/117,478.05
  6. Step 6: Final answer
    x = 91,727.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.